Rotary engine.



' PATENTBD AUG. 6, 190'?.

A. Goo-N. ROTARY ENGINE. APPLIUATI-OITIILED FEB. 26, 1907` IIIIIIIUNITED STATES PATENT OFFICE.

ABRAHAM GOON, OF GLENWOOD, IDAHO, ASSIGNOR OF ONE-HALF TO J. L. GROSS,OF KOOSKIA, IDAHO.

ROTARY ENGINE.

Speecation of Letters Patent.

Patented Aug. 6, 1907.

Application filed February 26, 1907. Serial No. 359,335.

An object of the invention is to provide in a rotary engine a rotatingcylinder casing inclosing an eccentric piston of improved form Withimproved abutments engaging said piston.

A further object of the invention is to provide in a rotary engine arotating cylinder casing inclosing an eccentric piston,'and improvedabutments sliding in the piston casing and engaging the piston.

A further object of the invention is to provide in a rotary engine inletand exhaust ports, and improved means for changing the relation of suchports at will.

A further object of the invention is to provide in a rotary engine apiston casing inclosing an eccentric piston having improved form ofpockets formed in the sides thereof for the admission and exhausting ofsteam to and from the casing,

With these and other objects in view, the invention comprises certainnovel constructions, combinations and arrangements of parts, as will behereinafter fully described and claimed.

In the drawings1Figure 1 is a horizontal, sectional view of the improvedrotary engine taken on line 1 1 of Fig. 2, with the stationary shaft andsteam chest taken on line 3 3 of Figs. 3 and 4. Fig. 2 is a view of thecylinder casing with the head removed showing the relative positions ofthe piston and abutments and taken on line 2 2 of Fig. 1. Fig. 3 is aview of the steam chest in vertical section exhibiting the tubular shaftin end elevation as taken on line 3 of Figs. 1 and 5. Fig. 4 is a viewin elevation of the rotary reversing valve. Fig. 5 is a sectional detailview of the tubular shaft, cylinder chest, inlet and exhaust ports takencoincident with lines 5 5 of Figs. 3 and 4. Fig. 6 is a view in sideelevation of the eccentric piston as seen on arrow G of Fig. 7. Fig. 7is a view in section of the piston taken on a line perpendicular to itsaxis as the line 7 7 of Fig. 6. Fig. 8 is a perspective view of one ofthe sliding abutment members.

Like characters of reference designate corresponding parts throughoutthe several views. v

The rotary engine forming the subject-matter of this application ismounted upon any convenient or approved form of base shownconventionally at 10 and comprises a cylinder casing 11, and a piston12` The cylinder casing is provided with a head 13 and is journaled torotate upon a shaft`14 at one end rigid therewith and upon an adjustablebearing 15, engaging the head 13 and serving also as a stuiiing box. Theadjustable bearing 15 is mounted upon screw threads as shownparticularly in Fig. 1 and formed tapered externally with its inner endabutting stuffing material shown at 16.

The cylinder casing 11 comprises an outer ring 17 upon which the head 13is rigidly secured in any approved manner as by the employment of bolts18 engaging within holes 19. Within the ring 17 is defined a circularchamber 20 concentric with the ring 17 and with the shaft 14 and bearing15.

Within the circular chamber 20 is mounted the piston 12 carried upon theend of a shaft 21 and eccentric both to such shaft 21 and the chamber 20so that one peripheral edge of the piston 12 is substantially in contactwith the peripheral wall of the chamber 20 and with the oppositeparallel surface of the said piston in contact respectively with thecylinder head 13 and inner surface of the cylinder'. The shaft 21isprovided with longitudinally extending parallel ports 22 and 23continued by downwardly extending branches 24 and 25 terminating inpockets 26 and 27 formed in the peripheral face of the cylinder 12 andupon opposite sides of and below the shaft 21,

Within the ring 17 of the cylinder casing are a plurality of slots 28formed as continuations of diametrically disposed-furrows formed in thesurface and crossing at the center of the cylinder, and within whichreciprocate abutment members 29. Opposite abutment members are joined bymeans of bars 30, halved adjacent their middles as at 31 to permit thesaid bars to cross and sliding diametrically in the said fui-rows. InFig. 1 one of the bars 31 is shown in elevation while the correspondingbar is shown in section as taken on line z z of Fig. 8 and with thesurface of the piston in frictional engagement with the bars 31 and withthe inner surface of the cylinder. The abutment members 29 are providedwith sockets 32 within which slidably operates the shank 33 of theabutments 34. It will be noted that the abutments 34 are formed withtapered sides, and with the ring 17 adjacent the socket 28 is formedwith tapered sides as at 35 to permit the abutment to be seated entirelywithin the ring and the face of the abutments to correspondsubstantially with the peripheral wall of the chamber 20 as shownparticularly in Fig. 2.

The shaft 21 carried rigidly by the piston 12 and remaining stationarytherewith extends outwardly beyond the supporting member of the base 1()and carries at its outer end a steam chest 36 provided with a -head 37and receiving steam or other iuid under tension through a pipe 38. Theshaft 21 terminates within the steam chest 36, and a valve member 39 ismounted within the chest and abutting the extremity ot the shaft 2l. Thevalve member 39 is provided with a port 40 positioned to register witheither of the ports 22 or 23 and to permit the passage therethrough ofthe steam or other fluid from the steam chest 36 to either of Said ports22 or 23. The valve member 39 is also provided with a segmental groove41 formed substantially similar to a horse-shoe and disposed radiallyfrom the center of such valve member to register with either of ltheopenings 2l and 22 which is not already registering with the opening 40.The steam chest 36 is also provided with an exhaust port 42 positionedto register with the groove 41 and permitting passage of fluid undertension from one of the ports 22 or 23 through the groove 41 and throughthe exhaust port 42. The valve member 39 is mounted to rotate within thesteam chamber 36 and iS provided with a stem 43 extending outwardlythrough the head 37 and carrying upon its external end a lever' or handwheel shown conventionally at 44 and whereby the valve member 39 withinthe steam chest 36 may be controlled. It will be understood that whenthe port 40 is registering with the port 22 the port 23 is in registerwith the groove 41 which also communicates with the port 42 so that theport 23 in that case is the exhaust port and the cylinder casing 11 willrotate in the direction indicated by the full line arrow in Fig. 2. Ii,however, the valve member 39 is rotated so that the port 40 registerswith the port 23 then the port 23 becomes the inlet port and the port 22the outlet port by way of the groove 41 and exhaust port 42 so that thecylinder casing is rotated in the direction indicated by the dottedarrow in Fig. 2. To stop the flow of Huid into the cylindcrcasing thevalve may be rotated so that both ports 22 and 23 are covered by thegroove 41, whereupon fluid is admitted to neither of said ports and thedevice will not be operated. It will further be understood that whenfluid under tension is admitted to either of the ports such fluid willexpand against the abutment and cause the cylinder casing to rotate, thepocket ot the piston being so formed that the abutments bear against thesides oi the pocket and ride over the pocket but do not prevent theadmission ot iiuid from the pockets to the casing 11. As soon as thecasing 11 is rotated to such an extent that the opposite pocket isuncovered then the contained iluid is exhausted through that pocket andits communicating ports as above described.

What I claim iszl; 1n a rotary' engine, 'a cylinder having a concentricchamber and with furrows formed diametrically of the chamber and atright angles to each other, and with extensions projected into the wallof the chamber, abutment carriers extending transversely across thechamber and seated within the fui-rows, and abutments carried by theabutment carriers, a piston eccentrically mounted Within the chamber andwith one side in engagement with the peripheral wall of the chamber, andits periphery engaged by the abutments.

2. In a rotary engine, a cylinder provided with a concentric chamber,and with fui-rows extending at right angles diametrically of the chamberand into the peripheral wall of the chamber forming pocketstherein,abutment carriers mounted within the pockets and provided withmeans extending' diametrically across the chamber within the fui-rowsand crossing eachother centrally of the chamberl abutments carriedyieldingly by the abutment carriers, a piston mounted eccentricallywithin the chamber and with the periphery in engagement with theabutments. and `one side in engagement with the peripheral wall of thechamber.

3. In a rotary engine, a cylinder provided with a concentric chamberhaving pockets formed in its walls and tapered at the entrance to thechamber, abutment carriers slidably seated within the pockets, abutmentshaving tapered sides carried by the abutment carriers and proportionedto be seated within the tapered extremities of the pockets, and a pistoneccentrically mounted within the chamber, and in engagement with theabutments and with one side in engagement with the peripheral wall ofthe chamber.

4, In a rotary engine, a cylinder provided with a concentric chamber andwith furrows extending at right angles across the chamber andterminating in pockets formed diametrically opposite within the walls ofthe chamber and tapered at their entrance to the chamber', abutmentcarriers slidably mounted within the pockets and connected by barsextending slidably within the turrows and crossingeach other centrallyof the chamber, abutments carried by the carriers and having taperedsides proportioned to be' seated within the tapered extremities of thepockets, and a piston eccentrically mounted within the chamber and inengagement with the abutments and with one side in engagement with theperipheral wall of the chamber.

5. In a rotary engine, a cylinder provided with a concentric chamberhaving furrows formed at right angles diametrically across andterminating in pockets formed in the peripheral wall of the chamber, thesaid pockets havingl tapered extremities opening into the chamber',abutment carriers slidably mounted within the pockets and provided withslots, the said abutment carriers being connected with diametricallyopposite carriers by bars extending diametrically across the chamberwithin the furrows, abutments slldably mounted within the slots of theabutment carriers, and having tapered sides proportioned to tit thetapered extremities of the pockets, resilient members mounted within theslots and bearing against the abutments, and a piston eccentricallymounted Within the chamber and with its periphery in engagement with theabutments and one side in engagement with the peripheral wall of thechamber.

In testimony whereof I aix my signature in presence of two witnesses.

ABRAHAM COON.

Witnesses z N. C. BA'rn, Crus. H. GELBACH.

